baber/WOPTO huggingface dataset:
Patent GB-602226-A (GB)
Title: Windows in flexible hoods of motor-vehicles
IPC: B60J1/18
Filed: 1946-02-07
Abstract: 602,226. Windows in vehicle hoods. CARBODIES, Ltd., and ORR, J. H. Feb. 7, 1946, No. 3837. [Class 20(iii)] A means for securing a transparent panel in an opening in the flexible hood of a motor-car comprises a channelled rubber strip 14 which receives and grips the edge of the transparent member and has its outer edge formed to receive and grip the beaded boundary of the opening. The bead is formed by enclosing a beading loop 12 in the edge of the canvas by stiching 13. For rectangular openings the beading loop may be of elastic, but for openings having a convex edge, a loop of wire is used. A decorative loop 20, of metal, plastic or coloured rubber may be inserted in the chanelled strip.
Patent GB-653448-A (GB)
Title: Improvements in or relating to the distillation of furfural
IPC: C07D307/48
Filed: 1948-02-10
Abstract: Furfural is separated from furfural-polymer in the absence of oxygen by feeding the mixture into the first of a series of connected evaporating zones maintained at successively-decreasing, non-polymerizing temperatures and introducing steam directly into the final zone, the zones being connected so that the furfural and water vapours from each zone (except the first) pass through the liquid in the preceding zone while the liquid accumulating in the base of each zone (except the last) passes into the succeeding zone; withdrawing a liquid mixture of polymer and water from the final zone, taking-off and condensing furfural vapours and steam from the first zone, and separating purified furfural containing about 5 per cent of dissolved water from the condensate.  The process is particu <PICT:0653448/III/1> larly applicable to the purification of furfural which has been used as a solvent in the extraction of butadiene from hydrocarbon mixtures.  It is preferable to operate at pressures in the range from atmospheric to about 30 pounds per square inch (gauge).  In the apparatus shown, the zones 4, 5, 6 are arranged to form a tower, and are separated by perforated plates 34, 35.  The feed-mixture is supplied through line 1 into the top section 4 which is maintained at about 295 DEG  F. by coil 29 and pressure-control valve 10.  Section 5 is maintained at about 280 DEG  F. by coil 31; while live steam is introduced through line 24 into section 6 which is maintained at about 240 DEG  F.  Furfural vapours and steam rise through perforated plates 35, 34 and through the liquid thereon, but the liquid does not pass through the perforations-it flows from section 4 to section 5 through overflow pipe 7, and from section 5 to section 6 through overflow pipe 8.  Polymer and water leave section 6 via line 25, and enter settling zone 26 from which the polymer is withdrawn from the system by line 27 while the water is passed to accumulator 17. The vapours withdrawn from the head of the tower are condensed in condenser 12; the condensate being passed to separator 14. Furfural is withdrawn from the system through line 16.  The water which forms the upper layer in separator 14, is passed to accumulator 17.  The water in accumulator 17 contains small amounts of dissolved furfural and, in order to prevent loss of furfural, this water is used as a source of live steam for injection into section 6, vaporizer 22 being employed for the purpose.  Make-up steam is supplied through line 30.  Another embodiment is described wherein the zones are separate but connected by liquid-pumps and flow-controllers.
Patent GB-704714-A (GB)
Title: Improvements relating to welders' helmets
IPC: A61F9/06
Filed: 1952-02-14
Abstract: 704,714. Goggles. ANGLO-IRANIAN OIL CO., Ltd., and BAKER, H. C. F. Feb. 13, 1953 [Feb. 14, 1952], No. 3907/52. Class 97(1) A welder's helmet comprises a protective hood for the head and face having an observation aperture fitted with plain glass or other transparent material, and a dark, ultra-violet absorbing filter hinged to the hood above the aperture and held in two positions of stable equilibrium by a spring so that by a quick jerk of the head the filter can be moved from its upper position out of the line of sight to its lower position covering the viewing aperture. Fig. 2 shows the filter 16 in frame 15 held in its upper position of stable equilibrium by a spring 19. One end 17 of the frame 15 is hinged to allow insertion of the filter 16, and the frame 15 is pivoted at 14 to frame 11 fitted with plane glass 13. Movement of the head pivots the frame 15 to its lower position in which the spring 19 passes below the level of the hinge 14 to hold the frame 15 in that position.
Patent GB-817996-A (GB)
Title: Coffee maker filter
IPC: A47J31/043
Filed: 1956-02-08
Abstract: 817,996. Filters. SUNBEAM CORPORATION. Feb. 8, 1956 [July 12, 1955], No. 3982/56. Class 46. [Also in Group VI] A filter for a vacuum coffee maker comprises a porous filter element 22, Fig. 3, on which is inverted a cup-shaped member 36, Fig. 1, with the lip at its outer edge engaging the porous element 22 and enclosing only part of its area, the cup-shaped member having at least one opening 40 near its mouth. As shown, the upper vessel 11 of a vacuum type coffee maker has a well with a side wall 12 and a bottom 13 to which is connected a tube 14, the junction being surrounded by a large rubber gasket (not shown). The porous member 22 consists of drawn stainless steel wire mesh, paper or cloth held flat by an annular ring member 23 comprising two flanges 24 and a gasket flange 25 ; a support frame 26 being provided having a rim 29 and hub 27, the member 22 and frame 26 being held together in the groove 33 of a gasket member 32. A rod 34 extends through holes 22a, 31 in member 22 and hub 27 respectively and a hole 42 in the cup member 36 and is encircled by a spring 35 having one end engaged in a hole 46 in the rod and the other end engaging the bottom 37 of the cup member 36. When the filter is inserted in vessel 11, the end of rod 34 away from the spring is engaged under the end of tube 14 so that the spring 35 presses the cup member 36 against screen 22 to hold member 33 tightly against vessel 11 to form a seal. The bottom 37 of cup member 36, which may be of stainless steel or aluminium, is perforated. The opening 40 may be provided with an angularly placed nozzle and perforations 41 may be replaced by openings 49 as shown in Fig. 5.
Patent GB-607687-A (GB)
Title: Improvements in or relating to plaster-depth electric switches
IPC: H02G3/12
Filed: 1945-02-16
Abstract: 607,687. Switch cases. NOVOBAX, Ltd., and SHARMAN, A. V. Feb. 16, 1945, No. 4004. [Class 38 (v)] The flush-mounted switch unit 1 is adjustable depthwise within a wall-box 8 by screwed studs 6, which are slotted at 11 and have enlarged heads whereby they are retained in recesses 7 in the box 8, by fixed locating plates 9. The studs 6 are threaded into blocks 12, non-rotatably engaged by upturned faces 13 on the plates 9 and attached to fixing plates 3 by screws 5 engaging slots 4 for angular adjustment of the switch unit. The fixing plates 3 are secured to the insulating base 2 of the switch unit by screws 3a, which have coaxial threaded holes 15 to receive the cover-plate securing screws. The switch mechanism may be as described in Specification 606,660. Specifications 378,842, 507,857, 519,251 and 544,284 also are referred to.
Patent GB-578781-A (GB)
Title: Improvements in or relating to lifting magnets
IPC: H01F7/20
Filed: 1944-03-03
Abstract: 578,781. Lifting-magnets. IGRANIC ELECTRIC CO., Ltd. March 3,1944, No.4021. Convention date, March 4, 1943. [Class 78 (iv)] [Also in Group XXXV] A lifting-magnet comprises a magnet frame having a face provided with main poles and auxiliary poles spaced with respect to said main poles, a magnet winding on each of said main poles, and means for energizing said windings and for controlling the direction of current therein to provide either a concentrated magnetic field extending between said main poles or a distributed field extending between said main and auxiliary poles. In the embodiment shown, the magnet comprises a cast frame with main pole members 4a, 4b and auxiliary members 3, 3, the members 4a, 4b being provided with windings 7 on bobbins 8 which are protected by a non-magnetic shield 9 secured by shoes 10, 12 attached by bolts 18, 20, 21 to the members 3, 4a, 4b. The windings are connected to four terminal posts 32 in the wall 26 of the terminal housing 25, two of these terminals being connected to one another by a bridging member 34 and the remainder to supply conductors L1, L2. When the windings are supplied with current in the same direction as in Fig. 4, the poles 4a, 4b assume like polarity, e.g., north, and the poles 3 become south so that the magnetic field is distributed substantially uniformly over the entire face of the magnet. With the windings supplied with current in opposite directions as shown in Fig. 5, the poles 4a, 4b are of opposite polarity, and with the cross-sectional area of the part 23 at least equal to that of the poles 4a, 4b, the flux passes between these poles and the magnetic field is thus concentrated between the poles to pick up, for. example, a single billet from a row of billets B.
Patent GB-136384-A (GB)
Title: An Improved Churning-apparatus Actuated by a Weight.
Inventor: EVANS JOHN BERTRAM
IPC: A01J15/04
Filed: 1919-02-19
Abstract: 136,384. Evans, J. B. Feb. 19,1919. Rotary batch-mixers. - A churn is rotated by a falling weight acting through a rope passing through a pulley-block device to a driving-drum geared to the churn spindle, which is fitted with a balance device to ensure regular rotation of the churn. As shown, a weight 2, Fig. 1, is adapted to slide in a structure 3 and has at each side of the top an eyebolt 6 connected' to a rope 4 attached to a winding-drum 5 with a handle for raising the weight. A rope 12 connected to the weight passes through an eightto-one pulley-block device 13 and is connected to a driving-drum 9, which may be coupled by a clutch 8 to a shaft 14 connected by gears 15, 16, 17 to the spindle of the churn, which is rotated as the weight falls. While the weight is being raised, the shaft 14 is unclutched from the drum 9, which is rotated by an attached sheave 11 and a crossed rope 10 from the drum 5 to take up the rope 12 and prevent its getting entangled. On the other end of the churn spindle is keyed a gear-wheel 19, Fig. 2, engaging a gearwheel 20 to which is secured a bar 21 carrying weights 22, 23 adjustable along the bar in accord ance with the quantity of milk in the churn, to ensure a regular motion of the rotating churn.
Patent GB-1300142-A (GB)
Title: Improvements in and relating to resistors
IPC: A01F12/30
Filed: 1970-01-28
Abstract: 1300142 Voltage dependent resistors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Jan 1970 [31 Jan 1969] 4131/70 Heading H1K A voltage dependent resistor comprising semi-conductor elements having one or two rectifying metal to semi-conductor contacts is fabricated by spreading a photoconductive gallium phosphide powder doped with zinc of granular size #150 Á and energy gap >1À1eV uniformly on rubber glue on a glass substrate, from which non-adherent grains are removed. The assembly is dipped in a solution of polyurethane forming compounds, dried in air, and heated in air to partially cure the polyurethane. The foil is removed from the substrate, the glue removed by solvent, and the foil is washed in soap solution, water and alcohol, and dried. It is then etched in alcoholic KOH, washed in alcohol and deionized water, dried, and heated to cure the polyurethane. The resultant foil is clamped between perforated metal masks 2, 3 (Fig. 1) in a metal bell which after evacuation is filled with argon at low pressure, so that high voltage between masks 2, 3 and bell 4 initiates gas discharge to ionically bombard the accessible foil surfaces. After cooling the bell is evacuated, and aluminium is vapour deposited by heating helices 5, 6. Thus (Fig. 2) grains of gallium phosphide 11 are embedded in insulant foil 13 with surface aluminium contact layers 12. A current pulse is applied between the contact layers, and the resultant resistor has a characteristic (Fig. 3, not shown) with high non-linearity between 3 and 5 applied volts. Other semi-conductor materials with energy gap >1À1eV, and other thermoplastic or thermosetting insulants than polyurethane are usable. The metal contact layers may be sputtered on, and may be gold, platinum, silver or copper. Other donors and acceptors may be applied by doping to control servoconductor resistivity.
Patent GB-673726-A (GB)
Title: Improvements relating to bushes for sealing rotating shafts
IPC: F16J15/40
Filed: 1950-02-17
Abstract: 673,726. Oil seals. ANGUS & CO., Ltd., G. JAGGER, E. T. No. 23, 1950 [Feb. 17, 1950], No. 4132/50. Addition to 657,964. Class 122(v) In a sealing device for a rotating shaft in which a non- rigid bush a helically grooved on a periphery is connected to a mounting c by an annular resilient web b, as desdescribed in the parent specification, the bush a is moulded on a periphery with a helical groove e extending between one end of the bush and a vent g and an oppositely directed helical groove f located between the other 'end of the bush and the vent. The outer end of the vent g is provided with a non-return valve h and the oppositely directed helical groove f is stopped at a point f<SP>1</SP> short of the end of the bush a.
Patent GB-1019561-A (GB)
Title: Azo dyestuffs and process for their production
IPC: C09B43/124
Filed: 1964-01-31
Abstract: The invention comprises an azo dyestuff of the formula <FORM:1019561/C4-C5/1> or <FORM:1019561/C4-C5/2> in which B is a radical of a phenolic or enolic component coupled in an adjacent position to the hydroxyl group or the group -MeO-, R is hydrogen or a substituent, Me is a metal and X is an acyl radical.  The benzene ring in the above formulae may contain at least one further substituent.  The dyes are prepared by conventional diazotization, coupling and metallizing procedures. Some intermediate amino azo dyes are produced by reduction of the corresponding nitro azo compounds. The residue B may be the residue of a 5-pyrazolone carrying a benzene series radical in the 1-position and bound with the azo group in the 4-position on the residue of an aminonaphthyl sulphonic acid bound to the azo group in the b -position.  Metallizing agents specified include copper, nickel, chromium and cobalt salts. Acylating agents specified from which the radical X may be derived include 2,3-dichloroquinoxaline-6-carboxylic acid chloride, cyanuric chloride, 2,4-dichloro-6-(21-sulphophenylamino)-triazine-(1,3,5) and tetra- and trichloropyrimidines. Examples are furnished and alternative starting materials listed.  The dyes are suitable for dyeing and printing natural and regenerated cellulose, wool and synthetic polyamides.
Patent GB-598949-A (GB)
Title: Improvements in or relating to a process for the catalytic isomerization of saturated aliphatic hydrocarbons
IPC: C07C5/27
Filed: 1944-03-08
Abstract: Saturated aliphatic hydrocarbons boiling below about 200 DEG  F and free from aromatic hydrocarbons are isomerized by contacting with a metallic halide isomerization catalyst and hydrogen halide, at a temperature within the range of about 150-250 DEG  F., a proportion of aromatic hydrocarbon within the range of about 0.1-5 per cent by weight being added to the feed thereby inhibiting the cracking which would normally occur.  Benzene, toluene, and xylenes are suitable aromatic hydrocarbons. Gasoline hydrocarbons boiling below about 200 DEG  F., normal pentane and hexane, and C5-6 fractions obtained by hydroforming naphtha may be treated.  Fluid catalysts such as aluminium halide-hydrocarbon complex or aluminium halide suspended in complex or hydrocarbon may be used.  Other halides specified are aluminium bromide, and zirconium chloride while carriers therefor include activated alumina or charcoal.  Hydrogen halide, for example chloride, is used in amount of about 1-5 per cent based on the hydrocarbon feed.  Addition of hydrogen is not necessary. The feed may be purified with acid, alkali, clay or spent isomerization catalyst.  In starting up, preformed complex made, for example, from aluminium halide, kerosene, and hydrogen halide, and washed with a light hydrocarbon such as pentane, naphtha or kerosene at about room temperature may be employed.  Such a complex with excess of water should liberate about 200-400 calories per gram.  Fresh aluminium halide is added during the isomerization.  Examples give comparative results for the isomerization of pentane with about 10 per cent of aluminium chloride catalyst, which may comprise 14 per cent of the used complex with kerosene, and 1 per cent of hydrogen chloride, in the absence of, and with 0.5-1 per cent of benzene, at 160-200 DEG F.  Specification 537,705 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the treatment of an aromatic containing feed to reduce the aromatic content to the specified figure, as by solvent extraction.  Olefines may also be removed, as by polymerization. The catalyst may be removed and treated to remove aromatic hydrocarbon combined as a complex, for example by reacting with ethylene to form ethylbenzene, the halide then being returned. This subject-matter does not appear in the Specification as accepted.
Patent GB-416459-A (GB)
Title: Improvements in or relating to the transmission of line signals to a moving train
IPC: B61L3/12
Filed: 1934-02-09
Abstract: 416,459. Track apparatus for actuating signals on trains. BURGESS, A. F., 10, New Court, Lincoln's Inn, London.- (Akt.-Ges. Metrum; Wallisellen, Switzerland.) Feb. 9, 1934, No. 4340. [Class 105.] In apparatus in which a cab signal and a braking effect are given when a train passes a signal at danger by a permanent or electromagnet 5 on the locomotive energizing through track windings 1, 2 a receiver winding 6 which feeds a relay 7, the receiver winding 6 being magnetically and electrically separated from the energizing magnet 5, the armature 9 of the relay 7 is made of a high permeability alloy such as " Permalloy." The track winding 2 may be energized from winding 1 through a rectifier 4 and the windings may be offset relatively to one another on the track. When the signal is at clear the winding 2 is not energized as it is then short-circuited by the closure of contact 3.
Patent GB-242836-A (GB)
Title: Improvements in or relating to means for holding the film bands of kinematograph apparatus
IPC: G03B1/56
Filed: 1924-02-17
Abstract: 242,836. Fairbrother, H., (Akt.-Ges. fiir Amateur Kino-Kamera Amak). Feb. 17, 1925. Kinematograph apparatus. - In gates comprising two frames mounted so that the film may be inserted laterally between them, one of the frames c is attached to the body of the apparatus, the other frame a is rigidly secured to the frame c, and a spring-pressed frame b is provided between them, the edges b<1> of the frame b which face the direction of insertion being bent over to facilitate insertion. Blade springs f above and below the orifices in the frames are fixed centrally to the frame a, and their free ends act upon the frame b through studs p. An aperture plate d, held by guide ways forming part of the frame c, is adjustable vertically by a rack and pinion to adjust the framing of the picture.
Patent GB-175973-A (GB)
Title: Improvements in dust caps for tyre valves or the like
IPC: B60C29/06
Filed: 1922-02-15
Abstract: 175,973. Sehrader's Son, Inc., A., (Assignees of Kraft, H. P.). Feb. 24,1921, [Convention date]. Ornamenting. - A sheet-metal dust cap or the like A formed with internal and external threads has the external threads C interrupted by one or more wide unthreaded areas D preferably knurled so as to present a more pleasing appearance. The cap may be completely threaded and sections subsequently knurled, or the. threaded and non-threaded areas !may be formed in one operation, so that the threads are interrupted both internally and externally. The top of the cap is provided with a gripping-surfaces in the form of a series of ribs B struck up from the body of the cap. The Specification, as open to inspection under Sect. 91 (3) (a), comprises also a modification in which the gripping-surface is in the form of two milled beads and the whole of the external thread is knurled. This subject-matter does not appear in the Specification as accepted.
Patent GB-832369-A (GB)
Title: Improvements in or relating to apparatus for sensing statistical records
Inventor: SMITH KENNETH LESLIE
IPC: G06K7/10
Filed: 1957-02-11
Abstract: 832,369. Sensing statistical records. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Jan. 29, 1958 [Feb. 11, 1957], No. 4603/57. Class 40 (3). In the sensing of a statistical record card &c. 3 by photo-cells 5, light from a source 2 is directed by a narrow parabolic reflector 1 and convergent lens 4 on to a single row or column of the card &c. Baffles 9 are provided to prevent the spread of light to an adjacent hole of a row or column. The source 2 may be arranged between the reflector 1 and lens 4 or may extend through a hole in the reflector. The invention is applicable to sensing marks on cards &c. by detecting reflected light.
Patent GB-1143092-A (GB)
Title: Improvements relating to frequency dependent gating circuit arrangement
Inventor: WILLIAMSON KEITH HAROLD
IPC: G01R23/02
Filed: 1966-02-02
Abstract: 1,143,092. Frequency discriminators. MULLARD Ltd. 2 Feb., 1967 [2 Feb., 1966], No. 4614/66. Heading H3A. An input pulse at terminal 2, Fig. 1, triggers a monostable circuit formed by transistors 3 and 8, thereby allowing a capacitor 16 to charge rapidly; when transistor 8 cuts off the capacitor discharges substantially linearly through resistance 13 for the interval between successive pulses, and on receipt of the next input pulse transistor 19 conducts to allow the potential on capacitor 16 to be transferred to capacitor 21 prior to its re-charging. Transistor 19 should act as a symmetrical transistor so that the potential on capacitor 21 may fall if the input frequency decreases; alternatively the transistor may be shunted by a diode as shown at 23. The potential on capacitor 21 is fed to the gate of a MOST 22 which supplies the output terminal 25. In a modification suitable for use with rectangular input pulses, Fig. 5 (not shown) a transistor (62) is turned on by the input pulses applied to its base thereby charging a capacitor (67) in its collector circuit; this discharges between pulses, and when the transistor conducts again on receipt of the next pulse, a second capacitor (72) is charged through a diode (69) until it reaches the potential of the first capacitor (67) when a second diode (70) conducts to prevent further charging. The charge on the second diode is measured by an output meter (73).